My view on Ueshiba and how he taught is from the view that he was spiritual and it showed in his teaching. At the hombu dojo in the early days and still up to now every teacher was allowed to teach his own particular style of what Ueshiba taught them. They even then went out and formed their own set ups of their particular brand. Ueshiba seemed to actively encourage this. Very spiritual and very organic.
Not true, even in the past, even less true now. Koichi Tohei is the most obvious (and public) example of this, but I personally know people that were not permitted to teach certain things while they were at hombu. The younger generation of instructors is increasingly homogenous.